Revert "Blink handle selection handle visibility"

content/browser/renderer_host/render_widget_host_view_aura.h

Index: content/browser/renderer_host/render_widget_host_view_aura.h
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.h b/content/browser/renderer_host/render_widget_host_view_aura.h
index 7e784fbe1e950ebaa4fad051209f365b0fa7d3f4..dbf3024f8b635fa3f21fed69baa58a67038324fc 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -454,6 +454,13 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
   // Called when the parent window hierarchy for our window changes.
   void ParentHierarchyChanged();
 
+  // Helper function to be called whenever new selection information is
+  // received. It will update selection controller.
+  void SelectionUpdated(bool is_editable,
+                        bool is_empty_text_form_control,
+                        const gfx::SelectionBound& start,
+                        const gfx::SelectionBound& end);
+
   // Helper function to create a selection controller.
   void CreateSelectionController();